4001: When iron rusts, the weight:
(a) Increases
(b) Decreases
(c) Remains the same
(d) First increases then decreases
4002: Why does man weigh more at the poles than at the equator?
(a) Because there is no atmosphere at the poles
(b) Because gravitational pull is more at the poles
(c) Because gravitational pull is less at the poles
(d) None of the above
4003: Mitochondrial DNA in an individual comes from
(a) Male parent
(b) Female parent
(c) Both parents
(d) Neither of the parents
4004: In the case of election to the Lok Sabha, the amount of Security deposited for general category candidates and SC/ST category candidates respectively is
(a) Rs 5,000 and Rs 2,500
(b) Rs 10,000 and Rs 2,500
(c) Rs 10,000 and Rs 5,000
(d) Rs 15,000 and Rs 7,500
4005: Write in chronological order"
(i) Man's landing on moon.
(ii) Discovery of radio activity.
(iii) First nuclear explosion.
(iv) Launching of first satellite by India.
(a) (iii), (ii), (iv), (i)
(b) (i), (ii), (iii), (iv)
(c) (iii), (i), (iv), (ii)
(d) (ii), (iii), (i), (iv)